Recent wave of attacks hit hard
Origin has reportedly been hit by a series of security breaches, as users come to find their accounts have been cracked into and personal details changed. To make matters worse, Electronic Arts' own security measures ensure victims aren't resolving the issue.
Users affected by the attack are told that their email address is invalid whenever they try to log in. When some users try phoning EA to find out what's wrong, they get shut down by representatives who refuse to help them without receipt of a valid date of birth -- information that the hackers have changed.
NeoGAF has managed to compile ten threads of complaints on EA's official forums, and that's just a sampling of those affected.
If you use Origin, it might be a good idea to check your details and make sure you've not been compromised.